Poland's Supreme Medical Council has called for more stringent laws on dietary supplements, a daily reported on Wednesday.

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In 2017, producers introduced 15,000 new dietary supplements onto the market, more than in the previous nine years combined, according to the Rzeczpospolita daily.

A study carried out by the Medical University of Łódź in central Poland has found that 50 percent of Poles consider dietary supplements to be safe to use even though no more than 0.5 percent of such products are medically tested by the Chief Sanitary Inspectorate, Rzeczpospolita said.

Polish law does not require dietary supplements to be tested before they are put up for sale, according to the newspaper.